CVE-2022-2414 Scanner

FreeIPA is an integrated Identity and Authentication solution for Linux/UNIX networked environments. It combines Linux (Fedora), 389 Directory Server, MIT Kerberos, NTP, DNS, Dogtag (Certificate System) to provide a single unified system for managing identity (users, hosts, services), authentication (Kerberos, certificates), and authorization (LDAP, access control information) with ease of management and integration into existing environments.

CVE-2022-2414 details an XML Entity Injection vulnerability in FreeIPA, where improper processing of XML inputs allows external entities to be loaded. This vulnerability could enable attackers to conduct XXE attacks, potentially allowing them to read files on the server, conduct internal port scanning, or perform other unauthorized activities by sending specially crafted HTTP requests.

The vulnerability arises due to the application's failure to properly sanitize XML input, particularly within the POST request to the /ca/rest/certrequests endpoint. By injecting malicious XML content, an attacker can define external entities that the XML parser will attempt to expand. This can lead to the disclosure of sensitive information contained in system files, such as /etc/passwd, or other data accessible to the web server process.

Exploitation of this vulnerability could lead to unauthorized access to sensitive data stored on the server, including system configurations and user data. Attackers might leverage this flaw to escalate privileges, access restricted areas of the application, or perform denial-of-service attacks by consuming server resources.

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References

• https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/webapp/Dogtag/Dogtag%20PKI%20XML%E5%AE%9E%E4%BD%93%E6%B3%A8%E5%85%A5%E6%BC%8F%E6%B4%9E%20CVE-2022-2414.md
• https://nvd.nist.gov/vuln/detail/CVE-2022-2414
• https://github.com/dogtagpki/pki/pull/4021